Stubbing out the initial library for Chrome application support.

tests/chrome/sample_test.dart

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library sample_test;
+import '../../pkg/unittest/lib/unittest.dart';
+import '../../pkg/unittest/lib/html_config.dart';
+import 'dart:chrome' as chrome;
+
+main() {
+  useHtmlConfiguration();
+  test('access', () {
+    var window = chrome.app.window;
+    expect(window is chrome.WindowModule, true);
+  });
+
+  test('fails from browser', () {
+    // APIs should not work in standard browser apps.
+    expect(() {
+      chrome.app.window.create('foo.html');
+    }, throws);
+  });
+}